

<br>
<div class="row ">

  <div class="col-md-3" *ngFor="let s of sl">
    <div class="card" >
      <img src="{{s.cover}}" class="card-img-top" alt="...">
      <div class="card-body">
        <h5 class="card-title">{{s.title}}</h5>
        <p class="card-text">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{{s.describe}}</p>
        <a  class="btn btn-primary" (click)="goToDetail(s.singlepageid)" style="color: white;cursor:pointer;width: 50%; align-content: center">查看详细</a>
      </div>
    </div>

  </div>
</div>
<br>


